I've been attempting to edit the character portraits of the GFs, but once I've edited the two pictures and replaced them they never seem to show up in the 2013 version of the game. :/ I haven't edited anything besides the pictures themes (how they look I mean). The dimensions are correct, it still has the same name, it still has the black border on the bottom like before, so I'm just kind of confused, because I've been able to successfully change the portrait pictures of the main cast.
Sorry if this isn't the right section to put this in, but I figured I might get an answer here sooner than just posting it on SeeDReborn's comment section.
Edit: So I managed to figure it out, I had to copy and paste the custom image that had been overlaid on the old one to a new clean .png and removed the black square at the bottom, but renamed it to be the same as the old images used before. That seemed to have fixed it, weirdly enough.